Jenoptik developing diode laser stacks for use in space

Aug. 21, 2006
August 21, 2006, Jena, Germany--Jena-Optronik GmbH and JENOPTIK Laserdiode GmbH are developing a pumping source for the laser for a new atmospheric LIDAR (ATLID) system.

August 21, 2006, Jena, Germany--Jena-Optronik GmbH and JENOPTIK Laserdiode GmbH are developing a pumping source for the laser for a new atmospheric LIDAR (ATLID) system. This system is intended to be used within the European Space Agency's (ESA) Earth observation program to contribute toward a better understating of the interaction between clouds, radiation, and aerosol processes.

A corresponding order from the ESA was awarded specially for the European-Japanese EarthCARE mission (Earth Clouds, Aerosols and Radiation Explorer). An ATLID (Atmospheric LIDar) system is to be used for the very first time here. ATLID is one of five instruments of the mission satellite and will be equipped with a laser as a light sources. The high-power diode laser, as a pumping source for this laser, is one of the most important elements. Jena-Optronik will carry out trials on the service life of the diode stack in a vacuum over an eighteen month period and also perform environmental tests (including for radiation and vibration) to ensure that the laser operates reliably.

Diode laser stacks from JENOPTIK Laserdiode are known for their durability and reliability. With this new development project the Jenoptik Group is pursuing its strategy of developing new markets through synergies within the group of companies. In the past, Jenoptik's developments in the field of high-power diode lasers were aimed primarily at ensuring that these lasers can be used reliably within the industrial environment, particularly in the automotive industry and in medical technology. The results of the research from this joint project will enable Jenoptik to acquire new know-how in the use of high-power diode lasers beyond their pure industrial applications.

The proposed satellite, orbiting at a height of 450 km, is intended to investigate the horizontal and vertical distribution of clouds, aerosols, and radiation as well as their interactions together, with the help of various sensors. Aerosols in particular play a major role in the chemistry of the earth's atmosphere since chemical reactions can take place between the, producing aggressive substances. ATLID will operate within a wavelength range of 355 nm and lead to a better understating of the interaction between clouds, radiation, and aerosol processes.

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